Java和React Native的基本类型对应如下:
Boolean = Bool
Integer、Double、Float = Number
String = String
Callback = function （React Native回调方式之一）
ReadableMap = Object
ReadableArray = Array
WritableMap = Object
WritableArray = Array
重点：ReadableMap、ReadableArray负责接收React Native传递的Object，Array。WritableMap、WritableArray负责为Android发送参数给React Native。用Map、List代替上面的类进行接收和发送，必然会在Android Monitor上看到报错信息。
Android Code:
@ReactMethod
public void reactOnAndroid(ReadableArray readableArray, ReadableMap readableMap, Callback callback) {
ArrayList<Object> arrayList = readableArray.toArrayList();
HashMap<String, Object> map = readableMap.toHashMap();
WritableArray writableArray = Arguments.createArray();
WritableMap writableMap = Arguments.createMap();
for(Object obj : arrayList){
writableArray.pushString("" + obj);
}
for(String key : map.keySet()){
writableMap.putString(key,"" + map.get(key));
}
callback.invoke(writableArray,writableMap);
}
React Native Code:
import {
NativeModules
} from 'react-native'
let reactAndroid = NativeModules.ReactAndroid
reactAndroid.reactOnAnroid(Array, Object, function (wArray, wMap) {
window.alert(wArray[0])
window.alert(JSON.stringify(wMap))
})
